public static string SaveUploadeFile(AsyncFileUpload fup, string SaveFolder, UploadFileType filetype, UploadFileSizeLimitation filesizelimit, UploadImageSize? Imagesize = null)
{
string FileExtension = Path.GetExtension(fup.FileName);
if (!IsValidFileType(FileExtension, filetype))
{
MessageBoxHelper.ShowMessageBox(fup.Page, "نوع فایل نامعتبر است", "", MessageBoxType.Information);
return null;
}
if (!IsValidFileSize(fup.FileBytes.Length.ToLong(), filesizelimit))
{
MessageBoxHelper.ShowMessageBox(fup.Page, "حجم فایل نامعتبر است", "", MessageBoxType.Information);
return null;
}
MemoryStream memStream = Imagesize.HasValue ? ResizeImage(fup.FileBytes, Imagesize.Value, FileExtension) : new MemoryStream(fup.FileBytes);
string FileName = Path.GetFileNameWithoutExtension(fup.FileName);
if (FileName != null) FileName = FileName.Replace(" ", "_");
FileName = FileName + "__" + Common.CreateTemporaryPassword(8) + FileExtension;
String AttchFilePath = HttpContext.Current.Server.MapPath(SaveFolder + FileName);
File.WriteAllBytes(AttchFilePath, memStream.ToArray());
return FileName;
}
private static bool IsValidFileSize(long fupsize, UploadFileSizeLimitation filesize)
{
switch (filesize)
{
case UploadFileSizeLimitation._100K:
return fupsize / 1024.0 <= 100;
case UploadFileSizeLimitation._200K:
return fupsize / 1024.0 <= 200;
case UploadFileSizeLimitation._500K:
return fupsize / 1024.0 <= 500;
case UploadFileSizeLimitation._1M:
return fupsize / 1024.0 <= 1000;
case UploadFileSizeLimitation._2M:
return fupsize / 1024.0 <= 2000;
case UploadFileSizeLimitation._5M:
return fupsize / 1024.0 <= 5000;
case UploadFileSizeLimitation.Unlimited:
return fupsize / 1024.0 <= 10000;
default:
throw new ArgumentOutOfRangeException("filesize");
}
}
public static long GetFileSize(UploadFileSizeLimitation filesize)
{
switch (filesize)
{
case UploadFileSizeLimitation._100K:
return 100 * 1024;
case UploadFileSizeLimitation._200K:
return 200 * 1024;
case UploadFileSizeLimitation._500K:
return 500 * 1024;
case UploadFileSizeLimitation._1M:
return 1000 * 1024;
case UploadFileSizeLimitation._2M:
return 2000 * 1024;
case UploadFileSizeLimitation._5M:
return 5000 * 1024;
case UploadFileSizeLimitation.Unlimited:
return 1000000 * 1024;
default:
throw new ArgumentOutOfRangeException("filesize");
}
}
private static bool IsValidFileSize(FileUpload fup, UploadFileSizeLimitation filesize)
{
return IsValidFileSize(fup.PostedFile.ContentLength, filesize);
}